Sitz Reservoir is an earth dam located in Harney County, Oregon, built in 1924. It carries a Low hazard potential classification.
Dam profile
NID height · 22 ft22 ft tall and 370 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Sitz Reservoir
The primary purpose of Sitz Reservoir is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by James Sitz (private). It impounds the Warmspring Creek near Drewsey.
The dam stands 22 feet tall and stretches 370 feet across, creates a reservoir covering 17 acres, has a maximum storage capacity of 182 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1924, the structure is over a century old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 07/11/2018.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Oregon |
| County | Harney |
| Nearest City | Drewsey |
| River/Stream | Warmspring Creek |
| Coordinates | 43.79182, -118.47484 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Dam Length | 370 ft |
| Year Completed | 1924 (102 years old) |
Storage & Hydraulics
| NID Storage | 182 acre-ft |
| Max Storage | 182 acre-ft |
| Normal Storage | 182 acre-ft |
| Surface Area | 17 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 290 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | James Sitz |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 07/11/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR00100 |
| Federal ID | OR00100 |
| More Info | State Dam Safety Program |